Cannot figure out python selenium webdriver move_to_element functionality

I looked at number of examples as well as source code for ActionChains and seemingly am using the code suggested in other examples for hover functionality, but still I cannot get over this exception. The code is as follows: ``` menu = browser.find_element_by_xpath("//nav/ul/li/a[@href='#'][.='Profile']") hover = ActionChains(webdriver).move_to_element(menu) hover.perform() ``` and the exception is: ``` Traceback (most recent call last): File "./test.py", line 56, in <module> hov.perform() File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/common/action_chains.py", line 44, in perform action() File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/common/action_chains.py", line 201, in <lambda> self._driver.execute(Command.MOVE_TO, {'element': to_element.id})) AttributeError: 'module' object has no attribute 'execute' ``` At first, I thought it was not working because there is no id attribute on the element, however I confirmed that is not the case (find_element_by_xpath does return correct element and there is some sort of {unique id} assigned to it). My Python skills are quite elementary, but I need to adapt the testing script I working on. I am sure I just don't understand this error. Thanks for your help!